Hochreine Lösungsmittel & Hochreine Säuren

introduction introduction picograde® solvents for residue analysis picograde® solvents form the heart of the LGC Standards solvent range each batch undergoes rigorous testing in order to meet the demanding requirements of organic trace analysis every time environmental analysts are now expected to detect trace levels of an increasingly wide range of organic environmental contaminants including pesticides pahs pcbs pcdds/pcdfs etc with the highest possible accuracy consequently even the lowest levels of impurity in the solvent can affect the precision of analytical results picograde® solvents are specifically tailored to this application carefully selected raw materials are chemically pre-treated and then fractionated in glass in the absence of air distillation and filling are similarly carried out in air free conditions the glass bottles are sterile and dust free and are rinsed with the appropriate solvent prior to filling caps used to seal the bottles are subjected to the same stringe